joyflow

2 years ago

PLZ HELP, MEDAL WILL BE GIVEN
Sexual reproduction among members of a population results in
A)different types of alleles in the gene pool.
B)changes in the allele frequences in the gene pool.
C)no changes in the allele frequences in the gene pool.
D)an absence of genetic variation in the population

okay, so pretend you have 2 bags with different coloured marbles, red and blue.
sexual reproduction is like mixing 2 bags of different marbles, so will end up with some red and some blue.
In contrast, self-fertilization will be like mixing the same coloured marbles over and over, so you will always have the same colour.
now pretend marbles are alleles

well you're speculating on sexual reproduction right? so C is out of the question because there will be a change in alleles (using the analogy, you're mixing the bags).
now, you're not changing the actual allele (can you change the marbles? no, you're only changing the amount of each marbles in the bags) by changing the amount, you're changing the frequency.
frenquency = how often